Actually, it wasnt a "fake bomb." It was a light-up shirt: A hoodie sweatshirt that had LED's wired into a circuit board that illuminated letters on her shirt. That's it.
Boston PD are calling it an "improvised electronic device" which I guess technically is correct.
But Boing Boing explains some of the details that most of the news conveniently overlooked:
Looks like the "improvised electronic device" consisted of a circuit board
and a common battery that caused her sweatshirt, which had painted writing on
it, to light up. Authorities referred to the paint as "putty."
The hoodie reads "Socket To Me / COURSE VI." A BB commenter familiar with MIT stuff says, "Course VI means she majors in Electrical Engineering / Computer
Here's a picture of the "device" in question:
From the Boston Globe article about her:
Prosecutor Wayne Margolis had requested $5,000 bail, saying Simpson showed
"a total disregard to understand the context of the situation she is in,
which is an airport of post-9/11."
Dont even THINK about making any kind of joke in an airport, kids. Especially around Boston, who is still recovering from that "Auqu Teen Hunger Force" sign they spent good taxpayer money to blow up.